Cross beam connecting piece
The design of the crossbeam connectors solves the problems of non-removability and aesthetics caused by welding fixation, enabling rapid assembly and disassembly of the metal frame, improving the convenience of transportation and storage, and enhancing the aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG HONGNING FURNITURE CO LTD
- Filing Date
- 2025-01-23
- Publication Date
- 2026-04-21
AI Technical Summary
The existing metal frame is fixed by welding, making it non-removable, which affects painting, transportation and e-commerce sales. In addition, welding operations can easily cause the pipe to deform, affecting its appearance.
The system uses a crossbeam connector, which includes a solid column and connecting bolts. The column and crossbar are detachably connected by a limiting pin and an anti-rotation slot. The bolts are hidden inside the pipe and are fixed by an anti-detachment pin and a pin hole, enabling quick assembly and disassembly.
It enables rapid assembly and disassembly of the metal frame, reduces space occupation, facilitates transportation and storage, and improves aesthetics.
Smart Images

Figure CN224149925U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal frame assembly technology, and in particular to a crossbeam connector. Background Technology
[0002] Metal frames are manufactured using metal tubing. To ensure that adjacent metal tubing can be securely fixed together, most metal frames are currently fixed by welding. Welding makes the metal frame non-removable, meaning it can only be sold after processing, which is inconvenient for painting, transportation, and e-commerce sales. Furthermore, welding can easily cause tubing deformation, affecting aesthetics. If bolted detachable connections are used, flanges are usually welded to both ends of the tubing. These flanges take up space, and the bolts are exposed, affecting appearance. Utility Model Content
[0003] This utility model proposes a crossbeam connector to solve the above-mentioned problems.
[0004] The technical solution of this utility model is implemented as follows:
[0005] A crossbeam connector includes a solid column fixed to a column by connecting bolts. The solid column is rectangular and has a bolt hole formed in its center along its length for installing the connecting bolt. At least one limiting pin is formed at one end of the solid column near the column and inserted into the side wall of the column. Two symmetrically arranged anti-rotation grooves are formed on the side wall of the solid column and are located at the edge of the solid column. The solid column is slidably inserted into the crossbeam.
[0006] Furthermore, each of the two adjacent side walls of the solid column has a mounting hole formed therein, and the two mounting holes are arranged in a cross shape.
[0007] Furthermore, a pin hole is formed on the crossbar at the position corresponding to the anti-rotation slot or the mounting hole.
[0008] Furthermore, the solid column has a countersunk hole formed concentrically with the bolt hole at one end away from the limiting pin.
[0009] The beneficial effects of this utility model by adopting the above technical solution are as follows: the connector enables quick assembly and disassembly of the uprights and crossbars, and the space occupied after disassembly is small, which facilitates the transportation and storage of metal shelves; after assembly, the connector and bolts are hidden inside the pipe, with less external exposure, which improves the aesthetics. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is the first perspective view of the present invention;
[0012] Figure 2 This is the second perspective view of the present invention;
[0013] Figure 3 This is a cross-sectional view of the present invention;
[0014] Figure 4 This is the front view of this utility model;
[0015] Figure 5 This is a reference diagram showing the usage state of this utility model;
[0016] Figure 6 This is a cross-sectional view of the utility model in use;
[0017] Figure 7 This is an exploded view of the utility model in use.
[0018] The annotations in the attached figures are explained as follows:
[0019] 1. Solid column; 2. Bolt hole; 3. Limiting pin; 4. Countersunk hole; 5. Anti-rotation slot; 6. Mounting hole; 7. Column; 71. Nut; 72. Limiting hole; 8. Crossbar; 81. Pin hole; 9. Connecting bolt; 10. Anti-detachment pin; 11. Shelf. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figures 1-7As shown, a crossbeam connector includes a solid column 1 fixed to a column 7 by connecting bolts 9. The solid column 1 is a rectangular column with bolt holes 2 formed along its length in the center for mounting the connecting bolts 9. Two limiting pins 3 are formed at one end of the solid column 1 near the column 7, which are inserted into the side wall of the column 7. A slot for mounting a nut 71 is formed on the side wall of the column 7. The connecting bolts 9 pass through the bolt holes 2 and then engage with the nut 71 to fix the solid column 1 to the side wall of the column 7. Four limiting holes 72 are arrayed around the nut 71, matching the limiting pins 3. Inserting the limiting pins 3 into the limiting holes 72 prevents the solid column 1 from rotating. Two symmetrically arranged anti-rotation slots 5 are formed on the side wall of the solid column 1. The solid column 1 has a mounting hole 6 formed on each of its two adjacent side walls. The two mounting holes 6 are arranged in a cross shape. The solid column 1 is slidably inserted into the crossbar 8. The crossbar 8 has a pin hole 81 formed at the position corresponding to the anti-rotation slot 5 or the mounting hole 6. After the pin passes through the pin hole 81 and is inserted into the anti-rotation slot 5 or the mounting hole 6, the solid column 1 and the crossbar 8 can be fixed together. At the same time, the anti-detachment pin 10 is welded or installed below the edge of the shelf 11 through a detachable connection. By using the cooperation between the anti-detachment pin 10 and the anti-rotation slot 5 or the mounting hole 6, the installation and fixation of the crossbar 8 and the solid column 1 can be completed. It can also fix the shelf 11 to the crossbar 8 to prevent its lateral movement. This realizes the assembly of the metal shelf and hides the connection structure, improving the aesthetics.
[0022] In this embodiment, the end of the solid column 1 away from the limiting pin 3 is formed with a countersunk hole 4 that is machined concentrically with the bolt hole 2. The countersunk hole 4 and the anti-rotation groove 5 can effectively reduce the weight of the solid column 1 and reduce costs.
[0023] The working principle of this utility model is as follows: When in use, the solid column 1 is fixed to the column 7 using the connecting bolt 9, and then the end of the crossbar 8 is nested outside the solid column 1. The shelf 11 is placed on the crossbar 8, and the anti-detachment pin 10 is aligned with the anti-rotation slot 5 or the mounting hole 6 and inserted to complete the assembly of the metal frame.
[0024] Components not described in detail in this article are existing technologies.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A crossmember connector, characterized by: Includes a solid column (1) fixed to the column (7) by connecting bolts (9). The solid column (1) is a rectangular column. The solid column (1) has a bolt hole (2) for installing the connecting bolts (9) formed in the center along the length direction. The solid column (1) has a limiting pin (3) formed at one end near the column (7) and inserted into the side wall of the column (7). The solid column (1) has two symmetrically arranged anti-rotation slots (5) formed on the side wall. The anti-rotation slots (5) are located at the edge of the solid column (1). The solid column (1) is slidably inserted into the crossbar (8).
2. A cross member according to claim 1, wherein: The solid column (1) has a mounting hole (6) formed on each of its two adjacent side walls, and the two mounting holes (6) are arranged in a cross shape.
3. A cross member according to claim 1, wherein: There is at least one limiting pin (3).
4. A cross member according to claim 1, wherein: The solid column (1) has a countersunk hole (4) formed concentrically with the bolt hole (2) at one end away from the limiting pin (3).